Sara Demo

Software engineer · ML & web platforms

Building tools that compound — small interfaces over deep systems.

Karachi, Pakistan

About

Sara is a software engineer who likes the boring half of engineering: clean APIs, fast tests, and observability you can act on. She's worked on ML platforms, payments infra, and the occasional indie game. Currently exploring what AI assistants should never do for you.

Experience

Software Engineer, Platform

Building the eval platform — dataset versioning, run diffing, and a CLI good enough that researchers stopped writing their own scripts.

PythonPostgresKafkaTypeScript

Backend Engineer

Owned the merchant-onboarding flow end-to-end; cut KYC median from 6h to 38m via async webhooks + retry policy.

GoPostgresRedis

Projects

scratchnet

Built to teach myself the maths. Trains MNIST in under two minutes on CPU. The tape-based gradient bookkeeping is what most surprised me.

PythonNumPy

Source ↗

kaftaa

TUI for browsing topics, filtering by header, and replaying ranges. Ergonomics over feature count.

RustRatatui

Source ↗

feed-by-rss

Web app + CLI to subscribe by topic, dedup across sources, and surface posts an LLM thinks you'd actually click. The LLM is wrong half the time, which I find informative.

TypeScriptSQLiteOpenAI

Source ↗ Live ↗

Education

National University of Computer Science

Senior thesis on robust active-learning under label noise. TA'd Algorithms II for two semesters.

Skills

PostgreSQLRedisReactKafkaDockerPythonTypeScriptGoRustPyTorch

Certifications

AWS Certified Solutions Architect — Associate

Verify ↗

Deep Learning Specialization

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